{"id":"W4412438704","doi":"10.1145/3730436.3730449","title":"AltGen: AI-Driven Alt Text Generation for Enhancing EPUB Accessibility","year":2025,"lang":"en","type":"article","venue":"","topic":"Text Readability and Simplification","field":"Computer Science","cited_by":11,"is_retracted":false,"has_abstract":false,"ca_institutions":"Simon Fraser University","funders":"","keywords":"Computer science; Multimedia; World Wide Web","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006186807,0.001297875,0.0005165341,0.001023865,0.0004206961,0.00127598,0.001379317,0.0008851805,0.03989324],"category_scores_gemma":[0.004032459,0.0004140109,0.0006390063,0.0006048846,0.0003590731,0.001598096,0.001651278,0.001101713,0.01319282],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002767422,"about_ca_system_score_gemma":0.0004163051,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008928618,"about_ca_topic_score_gemma":0.001338487,"domain_scores_codex":[0.9994277,0.000143817,0.00005057202,0.0001144997,0.0002178687,0.0000455471],"domain_scores_gemma":[0.9978002,0.0009540011,0.00009593416,0.0003946048,0.0006663444,0.00008882559],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.001193676,0.0003369088,0.001327525,0.001354765,0.00009785706,0.0009415845,0.0008900951,0.02070179,0.1214369,0.009789264,0.1298982,0.7120314],"study_design_scores_gemma":[0.0003785937,0.0004973855,0.001998519,0.0001176753,0.0001520903,0.0008316054,0.0004749734,0.5548845,0.258623,0.0180341,0.1638717,0.0001359676],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.03499533,0.0003208457,0.7687736,0.000352615,0.0006405712,0.0005575401,0.004974642,0.1678959,0.02148898],"genre_scores_gemma":[0.25436,0.0002934787,0.6775792,0.0003696966,0.0002282865,0.0006904719,0.01454169,0.02139524,0.03054192],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.03989324,"threshold_uncertainty_score":0.1334562,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02950165979052712,"score_gpt":0.3233822716840986,"score_spread":0.2938806118935715,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}